Quarter	US dollars
2004-12-31	7361
2005-03-31	9295
2005-06-30	8226
2005-09-30	9842
2005-12-31	8425
2006-03-31	15361
2006-06-30	15289
2006-09-30	16319
2006-12-31	16306
2007-03-31	16808
2007-06-30	17402
2007-09-30	17817
2007-12-31	19095
2008-03-31	24311
2008-06-30	23037
2008-09-30	20059
2008-12-31	18203
2009-03-31	15625
2009-06-30	17079
2009-09-30	16362
2009-12-31	15670
2010-03-31	14624
2010-06-30	15139
2010-09-30	18745
2010-12-31	19815
2011-03-31	21854
2011-06-30	20797
2011-09-30	17528
2011-12-31	16585
2012-03-31	18618
2012-06-30	16575
2012-09-30	17554
2012-12-31	16034
2013-03-31	14477
2013-06-30	15425
2013-09-30	14513
2013-12-31	16330
2014-03-31	15001
2014-06-30	14722
2014-09-30	12587
2014-12-31	12625
2015-03-31	12427
2015-06-30	11105
2015-09-30	9303
2015-12-31	8840
2016-03-31	10625
2016-06-30	9253
2016-09-30	9221
2016-12-31	9252
2017-03-31	9992
2017-06-30	11387
2017-09-30	11692
2017-12-31	10978
2018-03-31	12334
2018-06-30	10106
2018-09-30	10332
2018-12-31	11677
2019-03-31	10012
2019-06-30	10760
2019-09-30	11111
2019-12-31	10092
2020-03-31	7768
2020-06-30	9897
2020-09-30	12735
2020-12-31	13341
2021-03-31	10106
2021-06-30	12378
2021-09-30	13546
2021-12-31	17571
2022-03-31	11419
2022-06-30	14366
2022-09-30	15065
2022-12-31	13711
2023-03-31	12036
2023-06-30	17157
2023-09-30	18804